It refers to the lens opening of a camera.
focal
F-stop numbers are the numbers used to measure aperture (the amount of light entering the camera). Because f-stop numbers are actually fractions, the larger the f-stop number, the less light is entering the camera.
f/1, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22, f/32 are the usual full stops in aperture. You could have a full stop difference between two half or thirds as well.a full stop is when the light is halved or doubled between the two settings. so in shutter speeds if the time is close to doubled or halved its considered a stop so going from 1/30th to 1/60th would be a stop and the next nominal stop down would be 1/125th of a second.
an f-stop is a setting for a camera lens that determines how much light is allowed to reach the film.
The cast of F Stop - 2008 includes: Torsten Schwick as Photographer
When the f-stop of a camera increases in size the aperature also gets bigger
What lens? If your D3100 is using an f/5.6 (or f/5.8) aperture lens, that's as far as you can stop it down.
As you increase the f-stop number (stopping down) by closing the diaphragm you decrease the light. The conventional f-stop scale on camera lenses results from the halving of the available light. For example, when you stop down from f/11 to f/16, you are decreasing the light by half...that would require halving the shutter speed to get the same exposure.The standard f-stop scale on cameras goes:f/1, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22, f/32, f/45, f/64, f/90, f/128...
segargation
F Stop - 2008 was released on: USA: 23 August 2008 (Palm Springs Festival of Short Films)
The Hawaiian translation/spelling for the word stop is ho'opau.
you say it if ur mad and annoyed like. stop touching me and f off!